Pump or motor



Feb. 20, 1923. 1,446,366. v C. H. YOUNGI JR.

PUMP OR MOTOR.

FILED FEB, 18, 1922. 4 SHEETSSHEET 1.

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C. H. YOUNG. JR.

Feb. 20, 1923.

PUMP OR MOTOR.

FILED FEB=18,1922.

4 SHEETS-SHEET 2.

/IIIII Q Feb; 20, 1923.

C. H. YOUNG, JR.

PUMP 0R MOTOR. FILED FEB, 18. 1922.

4 SHEETSSHEET 3.

Feb. 2@, 1923 PUMP 0R MOTOR.

FILED FEB= I3. 1922. 4 SHEETS SHEET 4- 1,446,366. 0. H. YOUNG, 1R.

3-3, Fig. 2;

Patented Feb. so, rare.

entree srrs CHARLES H. YOUNG, 3'13, 01? WAYNE, PENNSYLVANIA, ,ASSIGTNORTO FIRE SYLVAN IA.

' PUMP CO., INC, 0F GONSHOHOCKEN, PENNSYLVANIA, A. CORFORATION 0F PENN-PUMP on rto'ron.

Application filed February 18, 1922. Serial No. 537,433.

T 0 all-whom it may concern:

Be it known that 1', CHARLES H. YOUNG, J13, a citizen of the UnitedStates, residing in Wayne, Dela-ware CountyyPennsyl- Vania, haveinvented certain Improvements in Pumps or Motors, of which the followinr is a specification.

y invention relates pumps or motors, and more particularly in that typeof pump employed in meto'r fire engines.

The main object of my invention is to provide apump having certainfeatures of reversibility rendering it adaptable without alteration to alarge variety of standard commercial truck chassis.

1n the attached drawings:

Figure 1, is a front elevation ofa pump made in accordance with myinvention;

Fig. 2, is a plan view of the pump;

Fig. 3, is a horizontal section on the line Fig. 4, is a front elevationsimilar to that of Fig. 1, but having the front plates of the gearcasing removed;

Fig. 5, is an end elevation of the pump;

Fig. 6, is a fragmentary section on the line 66, Fig. 2, illustratingthe details of the gear shift mechanism, and f Fig. 7 is an enlargedsection on the line 7-7, Fig. 4.

With reference to the drawings, the pump comprises a main casing 1.adapted to be mounted laterally of a motor vehicle and including intakeand discharge ducts 2 and 3 respectively, and a pump chamber 4 in whichare mounted in the present instance a pair of rotors 5, 5.

As best shown in Fig. 3, the discharge duct 3 vertically overlies theintake 2, the pump chamber 4 with which the ducts'commu'nicate lyingintermediate the two ducts and at their centers, the ducts extendingfrom the pump chamberlaterally to each side in such manner that theirends may lie at the opposite sides of the vehicle upon which th pump ismounted. The ends of the intak duct 2 are provided with, caps 6, 6,Whi-h are screwed to the ends of the duct, while the ends of thedischarge duct 3 are controlled by-valves 7, 7.

. To each side of the casing 1 and adapted to close the sides of thepump chamber 4 are pump heads 8, 8, said heads being identical andinterchangeable, and each is proto improvements in vided with a pair ofstuffing-boxes 9, 9, and bearings 10, 10, 'for the rotor shafts 11, 11,which are mounted in said heads. Adapted to be secured to the outerflanged face of one or other of the pump heads 8 is a drive unit casingcomprising a body casing 12, which issymmetrically formed around itslongitudinal center line and which is adapted to house a pair ofintermeshing pinions 13, 13, on the projecting ends of the shafts 11,11, a gear wheel 14 which meshes with one of the said gears 13, and apinion 15 upon a shaft 16, which latter is mounted at the lower end ofthe said body casting.

T e gear 14, as best shown in Fig. 7, is c rried b a short shaft 17,bearings for which are ormed upon the inside of face plates 18, 18,secured to the opposite sides of the casing 12, said bearings, asindicated in Fig; 1, being disposed laterallyof the vertical center lineof the plate in order that the gear may mesh with one of the plnions 13,while clearing the other. It will also be noted at this point that theplates 18, 18, are identical and therefore interchangeable, and are alsosymmetrically formed around their axes so as to render them reversible'lby reversing the plates, the bearings 18 Wlll be thrown to the oppositeside of the vertical center'line whereby the gear 14 will be broughtinto mesh with the other of the pinions 13. this having the effect ofreversing the rotation of the rotors. The gear 14 is, in the presentinstance, equipped with ball bearings 19.

As best shown in Fig. 7, one end of the shaft16 is mounted in a bearing20 within a cover 21 secured to one side of the casing 12, while theopposite end which is' of reduced diameter extends'into a recess 22within the enlarged of a shaft 24, which latter is mounted in a pair ofbearings 25 and 26 in a cover casing 27, which latter is secured to thatside of the casing 12 opposite the cover 21. Threaded extensions 28 and29 extend from the exposed ends of the shafts 16 and 24 and providemeans whereby secured in the drive shaft of the motor oft-he vehicle,the shaft 16 being always nearer I the engine than the shaft 24, whichlatter is It will be apparent that inner end portion 23 these shafts may"be I splined to and therefore slidable upon the shaft 16, and there isformed in the interior of the enlarged portion 23 of the shaft'24 anannular gear with which, the pinion 15 is adapted to mesh, said pinionand annular gear 30 thereby constituting a clutch for uniting the shafts16 and 24. Means is provided for shifting the pinion 15 from theposition in which it is shown in Fig. 7 in which it meshes with the gear14, to a position in which it meshes with the annular r gear 30, and thereverse, said shifting means consisting in the present instance of agear shift box 31 secured as} shown in Fig. 5 to one. side of the casing12, in which box is mounted upon a .shaft 32 which extends through oneside of the box 31, a forked shifting element 33 having arms 34, 34;,extending into opposite sides of an @annular recess 35 in the pinion 15,the shaft 32 being reciprocated iii the box 31 by means, in the presentinstance, of a lever 36 pivotally mounted on a bracket 37 secured to'thefront of the casing 12,- the lower end of said lever being suitablyconnected with the exposed end of the said shaft 32, as best shown in tshould be here stated that the cover flange 21 and the casing '27 are sodesigned as to be interchangeable whereby the relative positions of theshafts 16 and 24 may be reversed. 1

As previously described, the casing 12 is adapted to be'secured to oneor other of the heads 8, as may be found desirable, and where the casing12 is secured to one of the said heads, a casing 40 is provided for lattachment to-the other of the heads in place of the casting. In thismanner, it will be clear' that the casing 12 may be positioned at eitherside of the pump body 1, andv it will further be noted that the casing12 is so formed as to be itself reversible on the head to which it maybe attached.

It will be apparent from the foregoing that the casing 12 and itsvarious connected elements which go, to constitute the drive unit of thepump may be so reversed and interbhanged and positioned with respect tothe body 1 of the pump as to render the pump with its driveunitadaptable for mounting upon many of the standard makes of motorvehicle, and that with this arrangement th most favorable positioning ofthe pump i the vehicle may be attained; It

, will also be apparent that with a pump constructed in this fashion,the parts may be standar ized with the reasonable assurance that thepump in its standard form can be adapted to nearly any chamis upon whichit may be desired to mount it.

I olaimz 1. The combination with a main casing comprising a chamber anda plurality of ducts communicating therewith, of a rotor ments adaptedto be secured to said main casing in a plurality of different positions.

2. The" combination with a main casing comprising a plurality of ductsand an open ended chamber with which said ducts communicate, headsadapted to be secured to said casing to close the open ends of saidchamber, a shaft mounted in said heads and extending through thechamber, a rotor mounted on the shaft, power transmitting elementsadapted for operative connection with the shaft, and a casing for saidelements adapted to be secured to said heads and interchangeable fromone to the other.

3. The combination with a main casing comprising a chamber and apluralityof ducts communicating therewith, of a rotor in said chamber,power transmitting elements adapted for operative connection at eitherside of said rotor, and a casing for sai, elements adapted to be securedto either side of said casing. I

4. The combination with a main casing comprising a chamber and a"plurality of 'ducts communicating therewith, of a rotor the rotor, anda casing for said elements adapted to be secured to the said main casingat either side thereof and to be reversed in either position.

5. The combination with a main casing comprising a chamber and aplurality of ducts communicating therewith, of a rotor in.

said chamber, power transmitting elements, including a shaft, adaptedfor operative connection with the rotor, a casing for said elements,and-means for securing said casing to the main casing in a plurality ofdifferent positions whereby the said shaft may '''be made to assumereverse positions.

6. The combination with a main casing comprising a chamber and aplurality of ducts communicating therewith, a palr of shafts mounted insaid casing and extending through the chamber, a pinion on each of.

said shafts, a casing adapted to be secured to said main casing, powertransmitting elements mounted in said casing and including a gearadapted to mesh with one or other of the pinions' on said shafts, ashaft for said gear, bearings for said shaft detachably secured to thecasing, and means for changing the position of said bearings in theeasing to bring the said gear into mesh with either one or other of saidpinions.

7. The combination with a main casing comprising a chamber and aplurality of ducts communicating therewith, of a rotor in said chamber,a casing adapted to be secured to said main casing, power transmit-'ting elements mounted in said casing and eeasee v adapted for operativeconnection with the rotor, said power transmitting elements including ashaft, bearings for said shaft detachably secured to said casing, andmeans for interchanging the positions of said bearings whereby theposition of the shaft in the casing may be reversed.

8. The combination with a main casing comprising a chamber and aplurality of ducts communicating therewith, of a rotor in said chamber,a casing adapted to be secured to said main casing, power transmittingelements adapted for operative connection with the rotor mounted in saidlatter casing and including a pair of aligned shafts, means foroperatively connecting one of said shafts with the rotor, means forconnecting one of said shafts to the other, and means for reversing theposition of said shafts in the casing.

9. The combination with a main casing comprising a chamber and aplurality of ducts communicating therewith, of a rotor in saidchamber, acasing adapted to be secured to either side of the main casing, powertransmitting elements adapted for operative connection with the rotormounted in said latter casing and comprising a pair of aligned shafts,means for connecting one of said shafts with the rotorymeans forconnecting one shaft with the other, and means for reversing theposition of said shafts in the casing.

10; The combination with a main casing comprising a chamber and aplurality of ducts communicating therewith, of a rotor in said chamber,a casing adapted for attachment to either side of said main casing andto be reversed in either position, power transmitting elements adaptedfor operative connection with the rotor established in said casing andincluding a pair of aligned shafts, means for connecting one of saidshafts with the rotor and with the other of said shafts, and means forreversing the position of said shafts in the casing.

CHARLES H. YOUNG, JR.

